CN204320976U - The side blow mechanism of diel - Google Patents

Abstract

The utility model relates to a side punching mechanism of a stamping die, which is characterized in that it comprises a mounting seat provided with a guide groove, a slider and a stopper, a punch is installed on the slider, the slider is slidably connected to the guide groove and The original position and the stamping position move horizontally relative to the stopper, the two side walls of the slider are formed with dovetail grooves, and the two side walls of the slider are respectively connected with the first and second elastic members; and the inclined wedge set above the stamping assembly , the oblique wedge has a sliding rail that matches the dovetail groove and an elastic reset mechanism. There is a two-way contact between them. When working, the inclined wedge balances the stress points on both sides when the slider moves, eliminating the unbalanced factor when the vertical force is converted into a horizontal force. In addition, due to the first elastic member and the second elastic member and The setting of the elastic reset mechanism can effectively ensure that the slide block can be forcibly reset quickly after the stamping action is completed.

Description

Side punch mechanism of stamping die

technical field

The utility model relates to the field of stamping dies, in particular to a side punching mechanism of a stamping die.

Background technique

Stamping dies are widely used in the manufacture of automobile body panels, etc. Due to the structural requirements of automobile body panels, in many cases, punching, flanging, embossing, shaping, etc. The side punching mechanism is used to convert the vertical movement provided by the press machine into a horizontal or inclined movement, that is, to realize power transmission and movement conversion, so as to complete various required stamping processes on the side of the workpiece.

Many workpieces in current production have side punching stations. The common side punching device is shown in Figure 6. The push rod 1' pushes the slider 2' to punch under the action of external force. Due to the external force of the push rod 1' The side 5' is parallel to the inner side 4' on the slider 2' in the vertical direction, and the push rod 1' has no horizontal force on the slider 2' during the reset process. After the push rod 1 is reset, The slider 2' can only be reset under the action of the elastic part 3', so as to carry out the next punching. Although this structure is relatively simple, there are certain potential safety hazards: the performance of the elastic part 3' will deteriorate with the prolongation of the use time. There will be a decrease, and the elastic part 3' may not be able to reset the slider accurately during the process of pushing the slider 2' back, so that the slider 2' does not return to the initial state. If the push rod 1 'Downward movement will easily cause the collapse of the side push convex and concave dies. Therefore, in the production process, the elastic part 3' must be regularly overhauled or replaced, which increases the maintenance cost. Therefore, it is necessary to further improve the traditional side impact mechanism.

Contents of the invention

A technical problem to be solved by the utility model is to provide a side punching mechanism that is not easy to damage the stamping die in view of the above-mentioned current state of the art.

Another technical problem to be solved by the utility model is to provide a side punching mechanism of a stamping die that can be forcibly and automatically reset in view of the above-mentioned prior art status.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: the side punching mechanism of the stamping die, which is characterized in that it includes:

The mounting base has a cavity on the mounting base, and guide grooves are formed on the two opposite inner walls of the mouth of the cavity;

The stamping assembly, limited in the cavity, includes a slider and a stopper arranged on the rear side of the slider, a punch is installed on the slider, the slider is slidably connected to the guide groove and It can move horizontally relative to the block at the original position and the stamping position, and the two side walls of the slider are formed with dovetail grooves, and the dovetail grooves are gradually inclined backward from top to bottom;

The wedge block is arranged above the stamping assembly, and the wedge block has a slide rail adapted to the aforementioned dovetail groove. When the wedge block goes down, the slide rail cooperates with the dovetail groove to generate The thrust that pushes forward toward the stamping position, and when the wedge block goes up, the slide rail cooperates with the dovetail groove to drive the slide block to return to the original position forcibly.

Preferably, the front side wall of the oblique wedge extends out of the slide rail forwardly, and the slide rail also gradually inclines backward from top to bottom. Since the dovetail groove and the slide rail are gradually inclined backwards, in the state where the inclined wedge moves downward to generate thrust on the slider, it can be decomposed into a force moving along the horizontal direction to promote the slider to the stamping position. As an action, on the contrary, when the wedge block goes up, it can be decomposed into a force that exerts a forced reset to the original position on the slide block.

The front end surface of the slide rail is planar. The planar front end of the slide rail can promote the wedge block to fit better with the dovetail groove of the slide block, and generate a greater thrust on the slide block when going down.

The front end of the slider is provided with an elastic reset mechanism, which acts on the slider and makes the slider always have a tendency to return to the original position. The setting of the elastic reset mechanism can effectively ensure that the slider can be forcibly reset quickly after the stamping action is completed, so as to avoid the slider not working normally due to insufficient spring force.

There are many ways to set the height of the elastic return mechanism. From the perspective of simple installation, the preferred method is: the elastic return mechanism includes a compression spring, and one end of the compression spring is supported on the mounting seat, and the other end is supported. on the slider.

Further, the lower end surface of the slider is fixedly connected with a guide block, the two sides of the guide block have flanges matching the guide groove, and the middle part of the guide block also has a blind hole opening forward, A column extending backward is formed on the mounting seat, one end of the compression spring is sleeved on the column, and the other end is limited in the blind hole. The blind hole of the slider and the column of the mounting seat together constrain the compression spring, which can not only effectively prevent the compression spring from running off, but also make the slider always have a tendency to return to the original position.

The two side walls of the slider are also respectively connected with a first elastic member and a second elastic member, so that the slider always has a tendency to return to the stopper. Due to the arrangement of the first elastic member and the second elastic member, it can effectively assist the sliding block to be forced to return quickly after completing the stamping action.

Further, the first elastic member includes a first tension spring, the second elastic member includes a second tension spring, and the two side walls of the slider are respectively provided with a first fastener and a second fastener. Correspondingly, a third fastener and a fourth fastener are respectively provided on the stopper, and the two ends of the first tension spring are respectively hooked on the first fastener and the third fastener , the two ends of the second tension spring are respectively hooked on the second fastener and the fourth fastener.

Further, a guide device is provided between the slider and the stopper. The guiding device can ensure the matching precision between the sliding block and the blocking block when it moves horizontally relative to the blocking block.

Preferably, the guide device includes a first through hole and a second through hole respectively provided on the slider and the stopper, and a guide column penetrating between the first through hole and the second through hole.

Compared with the prior art, the utility model has the advantages that: the sliding rail of the wedge block is in two-way contact with the dovetail grooves located on the two side walls of the slide block. The balance of the force points eliminates the unbalanced factor when the vertical force is converted into a horizontal force. In addition, when the wedge block goes up, the slide rail cooperates with the dovetail groove to drive the slider to the original position for forced reset, which can ensure the oblique The wedge provides sufficient strength to the slider while eliminating damage to the slider due to tilting or uneven loading.

Description of drawings

Fig. 1 is the structural representation of an angle of the utility model embodiment;

Fig. 2 is the structural representation of another angle of the utility model embodiment;

Fig. 3 is the structural representation of wedge block in the utility model embodiment;

Fig. 4 is the structural representation of slide block in the utility model embodiment;

Fig. 5 is a schematic structural diagram of removing the wedge block in Fig. 2;

Fig. 6 is a structural diagram of a side punching station in the background technology.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, it is a preferred embodiment of the present utility model. As shown in Figures 1 and 2, the side punch mechanism of the stamping die in this embodiment includes a mounting seat 1, a stamping assembly arranged in the mounting seat 1, and a wedge block arranged above the stamping assembly and connected to the upper die seat 50, wherein, the installation seat 1 has a cavity 11, and guide grooves 12 perpendicular to the movement direction of the upper mold base are opened on the two opposite inner walls of the mouth of the cavity 11, and the stamping assembly includes a stopper 3 and The slide block 2 matched with the wedge block 50, a punch is installed on the slide block 2, the lower end surface of the slide block 2 is fixedly connected with a guide block 5 with flanges 51 matching with the guide groove 12 on both sides, and guide The middle part of the block 5 also has a blind hole 52 with an opening facing forward, and a column 70 extending backward is formed on the mounting seat 1, and a compression spring 4 is arranged between the guide block 5 and the column 70, and one end of the compression spring 4 is sleeved on the On the column 70, while the other end is limited in the blind hole 52, the compression spring 4 acts on the slider 2 and makes the slider 2 always have a tendency to return to the original position.

As shown in FIG. 4 , the two side walls of the slider 2 are formed with dovetail grooves 21 , and the dovetail grooves 21 are gradually inclined backward from top to bottom. Correspondingly, the front side walls of the wedge block 50 extend forward from the slide rail 31 , the slide rail 31 also gradually tilts backwards. Since the dovetail groove 21 and the slide rail 31 are gradually inclined backwards, in this way, when the wedge block 50 descends to generate thrust on the slide block 2, it can be decomposed into a force moving along the horizontal direction, and the wedge block 50 can The movement in the vertical downward direction is converted into the horizontal movement of the slider 2 to overcome the elastic resistance of the compression spring 4 to the stamping position, so as to promote the movement of the slider 2 to the stamping position, on the contrary, when the wedge block 50 goes up, it can be disassembled A force is applied to the slider 2 to make a forced reset to the original position.

In this embodiment, the front end of the slide rail 31 is preferably planar, and the planar front end of the slide rail 31 can promote a better fit of the wedge block 50 and generate thrust on the slide block 2 when going down. In addition, the two side walls of the slider 2 are respectively connected with the first extension spring 6 and the second extension spring 7, so that the slider 2 always has a tendency to return to the stopper 3, and the two side walls of the slider 2 are respectively provided with The first fastener 8 and the second fastener 9, correspondingly, the third fastener 20 and the fourth fastener 30 are respectively arranged on the block 3, the first fastener 8, the second fastener 9. The third fastener 20 and the fourth fastener 30 can be bolts or screws. The two ends of the first extension spring 6 are hooked on the first fastener 8 and the third fastener 20 respectively. The two ends of the two extension springs 7 are respectively hooked on the second fastener 9 and the fourth fastener 30, which can effectively ensure that the slide block 2 can play an auxiliary and mandatory rapid reset after the stamping action is completed, so as to avoid the The elastic force of the compression spring 4 is insufficient and the slider 2 cannot work normally. Preferably, the side impact mechanism provided by the utility model also includes a guide mechanism, the guide mechanism is located between the slider 2 and the stopper 3, and the guide device includes first through holes respectively arranged on the slider 2 and the stopper 3 23 and the second through hole 33 and the guide post 40 passing through the first through hole 23 and the second through hole 33 to ensure the matching accuracy between the slider 2 and the stopper 3 when it moves horizontally relative to the stopper 3 .

The specific stamping process is as follows: Before stamping, put the punch on the slider 2, and leave enough gap between the slider 2 and the workpiece to facilitate the adjustment of the punch to ensure that it is consistent with the punching required on the workpiece. The positions of the holes are precisely aligned. When stamping, the upper die base drives the wedge 50 to go down, the slide rail 31 of the wedge 50 cooperates with the dovetail groove 21 of the slider 2 and generates thrust on the slider 2, and drives the slider 2 to overcome the compression spring 4 and the second The elastic resistance of the first tension spring 6 and the second tension spring 7 moves horizontally relative to the block 3, and the punch installed on the slider 2 moves horizontally to complete punching or bending in the horizontal direction. At this time, the slider 2 reaches the lower limit point and starts to return, the upper mold of the mold moves upward, and at the same time, the wedge block 50 is driven to move upward forcibly. Return to the original position under the elastic recovery force.

Claims (10)

1. a side blow mechanism for diel, is characterized in that: include:

Mount pad (1), described mount pad (1) has a cavity volume (11), and has gathering sill (12) on the madial wall that described cavity volume (11) oral area two is relative;

Punch assembly, spacing in described cavity volume (11), include slide block (2) and be arranged on the block (3) on rear side of slide block (2), (2) are provided with drift to described slide block, described slide block (2) is slidably connected at described gathering sill (12) and above also can moves horizontally relative to described block (3) in home position and stamping position, described slide block (2) two side is formed with dovetail groove (21), and described dovetail groove (21) tilts backwards from top to bottom gradually;

Tapered wedges (50), be arranged on above punch assembly, described tapered wedges (50) has the slide rail (31) suitable with aforementioned dovetail groove (21), when described tapered wedges (50) is descending, described slide rail (31) matches with dovetail groove (21) thrust to produce the driven forward to stamping position to slide block (2), and when described tapered wedges (50) is up, described slide rail (31) matches to drive described slide block (2) to make forced resetting to home position with dovetail groove (21).

2. the side blow mechanism of diel according to claim 1, it is characterized in that the front side wall of described tapered wedges (50) extends forward described slide rail (31), described slide rail (31) similarly also tilts backwards from top to bottom gradually.

3. the side blow mechanism of diel according to claim 2, is characterized in that the front end face of described slide rail (31) is plane.

4. the side blow mechanism of diel according to claim 1, it is characterized in that the front end face of described slide block (2) is provided with a flexible restoring organ, this mechanism acts on described slide block (2) and makes slide block (2) have the trend resetted to home position all the time.

5. the side blow mechanism of diel according to claim 4, it is characterized in that described flexible restoring organ comprises a Compress Spring (4), one end of this Compress Spring (4) holds on described mount pad (1), and the other end holds on described slide block (2).

6. the side blow mechanism of diel according to claim 5, it is characterized in that described slide block (2) lower surface is fixedly connected with a guide pad (5), the both sides of this guide pad (5) have the chimb (51) matched with described gathering sill (12), and the middle part of described guide pad (5) also has opening blind hole forward (52), described mount pad (1) forms the column (70) extended back, one end of described Compress Spring (4) is enclosed within this column (70), the other end is spacing in described blind hole (52).

7. the side blow mechanism of the diel according to Claims 1 to 5 any one claim, it is characterized in that the two side of described slide block (2) is also connected to the first elastic component and the second elastic component, to make slide block (2), there is trend all the time that reset to described block (3).

8. the side blow mechanism of diel according to claim 7, it is characterized in that described first elastic component includes the first extension spring (6), described second elastic component includes the second extension spring (7), the two side of described slide block (2) is respectively arranged with the first securing member (8) and the second securing member (9), accordingly, described block (3) is respectively arranged with the 3rd securing member (20) and the 4th securing member (30), the two ends of described first extension spring (6) respectively hook are located on the first securing member (8) and the 3rd securing member (20), the two ends of described second extension spring (7) respectively hook are located on the second securing member (9) and the 4th securing member (30).

9. the side blow mechanism of the diel according to Claims 1 to 5 any one claim, is characterized in that being provided with guider between described slide block (2) and block (3).

10. the side blow mechanism of diel according to claim 9, is characterized in that described guider comprises the lead (40) being separately positioned on the first through hole (23) on slide block (2) and block (3) and the second through hole (33) and being located between the first through hole (23) and the second through hole (33).